Feature:1. Great Fitment: The key fob card is a replacement for Model S All years, replacement for Model X All years and much more models, no need to charge.2. Excellent Performance: The plays an important role when you are unable into the car for the phone is inaccessible, out of battery, or others need to use your key temporarily.3. Convenient to Use: You can lock or unlock by slightly clicking in the center of the pillar on the right side of the driver window with the key ring, more easier and faster.4. Waterproof Design: The key is highly waterproof, conveniently enter and exit on any occasion, no need to remove while washing hands, taking shower or swimming.5. High Quality Materials: The keyfob is made of lightweight ceramic by hand, provides comfortable feeling for you, looks delicate, not easy to break.How to Use:1. Organize and clear the center control sensing area2. Click on the bottom in the lower left corner of the center control screen3. Click the middle lock button4. Click the + on the right side of the key5. Put our smart ring on the central control induction area6. When the screen pops up Induction of existing key card to approve pairing, put the original car key/card in the central control induction area for authorization and wait for completion.Specification:Item Type: Key Fob Card RingMaterial: CeramicColor: GoldenFitment: Replacement for with card keysReplacement for Mo